Suzuki RG 500 Gamma (1987)
The Suzuki RG 500 Gamma is a motorcycle model from 1987 with a two-stroke, square four-cylinder engine and 498 cc capacity. It has a liquid-cooled cooling system, wet sump lubrication, and four 28mm Mikuni VM28SH flatslide carburetors for induction. The ignition is Suzuki PEI and the spark plug is NGK BR9ES. The motorcycle has a maximum power of 70 kW / 95 hp at 9000 rpm and a maximum torque of 72 Nm / 7.3 kgf-m 53.1 lb-ft at 9000 rpm. The clutch is wet and cable-operated, with a 6-speed transmission and final chain drive. The frame is made of steel, and the motorcycle has air-adjustable fork, 38 mm tubes, and an adjustable spring preload with anti-dive valuing. The front brakes consist of two 260 mm discs and 4 piston calipers, whereas the rear brake is a single 210 mm disc with 2 piston caliper. The fuel capacity is 22 litres, and the average consumption is 8.7 L/100 km or 27 US mpg. It has a top speed of 236.4 km/h or 146.9 mph and can complete a standing 1/4 mile race in 11.2 sec while reaching 193.9 km/h or 120.5 mph. This motorcycle was also part of a Motociclismo Motosprint Group test.
Technical specifications:
Make Model: Suzuki RG 500 Gamma
Year: 1987
Engine: Two stroke, square four cylinder, rotary valve with exhaust port valves
Capacity: 498 cc / 30.4 cu in
Bore x Stroke: 56 x 50.6 mm
Cooling System: Liquid cooled
Compression Ratio: 7.0:1
Lubrication: Wet sump
Induction: 4 x 28mm Mikuni VM28SH Flatslide carburetors
Ignition: Suzuki PEI
Spark Plug: NGK, BR9ES
Starting: Kick
Max Power: 70 kW / 95 hp @ 9000 rpm
Max Power Rear Tyre: 61.9 kW / 83 hp @ 10000 rpm
Max Torque: 72 Nm / 7.3 kgf-m 53.1 lb-ft @ 9000 rpm
Clutch: Wet, cable operated
Transmission: 6 Speed
Final Drive: Chain, 2.500 (40/16)
Primary Drive Ratio: 2.230 (58/26)
Gear Ratio: 1st 2.636 (29/11) / 2nd 1.750 (28/16) / 3th 1.380 (29/21) / 4th 1.173 (27/23) / 5th 1.045 (23/22) / 6th 0.956 (22/23)
Frame: Steel, double cradle frame
Front Suspension: Air adjustable fork with 38mm tubes, adjustable spring preload and anti dive valuing.
Front Wheel Travel: 130 mm / 5.2 in
Rear Suspension: Shock absorber, adjustable for spring preload
Rear Wheel Travel: 126 mm / 4.9 in
Front Brakes: 2 x 260 mm Discs, 4 piston calipers
Rear Brakes: Single 210 mm disc, 2 piston caliper
Front Tyre: 110/90 V16
Rear Tyre: 120/90 V17
Dimensions: Length 2100 mm / 82.7 in Width 695 mm / 27.4 in Height 1185 mm / 46.7 in
Wheelbase: 1425 mm / 56.1 in
Seat Height: 770 mm / 30.3 in
Ground Clearance: 120 mm / 4.7 in
Dry Weight: 156 kg / 339.5 lbs
Wet weight: 175 kg / 386 lbs
Fuel Capacity: 22 Litres / 5.8 US gal / 4.8 Imp gal
Consumption Average: 8.7 L/100 km / 11.5 km/l / 27 US mpg / 32.5 Imp mpg
Braking 60 km/h – 0: 16 m / 52.5 ft
Braking 100 km/h – 0: 39.2 m / 18.6 ft
Standing 1/4 Mile: 11.2 sec / 193.9 km/h / 120.5 mph
Top Speed: 236.4 km/h / 146.9 mph
Road Test: Motociclismo Motosprint Group Test
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